Calendar sync with Google Calendar ...

Hi,
I'm a new BB user (9900) and am just getting things set up. My gmail is working fine. But I have a quick question about Google Calendar. Currently I am able to sync my BB Calendar and Google Calendar. Takes a while for an appointment to show up on my BB if I enter it from a computer onto Google Calendar but I assume that is because of RIM's polling times with Google's servers - not a big deal for me as my calendar entries aren't that fluid.
However, I currently share my Google Calendar with my wife's. While on a computer I can see her calendar entries in addition to my own, but I don't see them on my BB. Other than copying her entries to my own calendar on a computer, is there any way that I can see her entries on my BB calendar application? If I can't do this with my BB, does anybody know if this functionality is possible on an Android device?